Deafen
Deafen , transitive verb
[From Deaf.]
1.
To make deaf; to deprive of the power of hearing; to render incapable of perceiving sounds distinctly.
Deafened and stunned with their promiscuous cries.
2.
(Architecture) To render impervious to sound, as a partition or floor, by filling the space within with mortar, by lining with paper, etc.